| abstract |
The present invention relates to a copper ingot cast by a belt caster type continuous casting machine, in which void defects are reliably reduced, a copper wire comprising the copper ingot, and the production of surface defects is suppressed, and the manufacture of the copper ingot Provide a method. A copper ingot cast by a belt caster type continuous casting machine having a carbon content of 1 mass ppm or less, an oxygen content of 10 mass ppm or less, and a hydrogen content of 0.8 mass. ppm or less, the phosphorus content is within the range of 15 ppm to 35 ppm, the balance is made of Cu and inevitable impurities, and further includes inclusions made of an oxide containing carbon, phosphorus and Cu. Features. [Selection figure] None |